import copy

tup = (1, [2], 2)
tup2 = tup

tup[1].append(1)
print(tup, tup2)

tup1 = (1, 2)
tup2 = tup1
tup1 += (1,)
print(tup1, tup2)

tup = (1, [2], 2)
tup2 = copy.deepcopy(tup)

tup[1].append(1)
print(tup, tup2)

# 当然一般很少这么套的
